Search found 10 matches

by drolo
Tue Aug 29, 2017 1:47 am
Forum: FV-1 software questions
Topic: Reverse delay?
Replies: 47
Views: 93149

Reviving an old thread! I wrote this code that gets you 500 ms of reverse delay. The delay time, or rather the size of each reversed segment can be adjuster with POT0. The program uses a counter to increment ADDR_PTR to read though the delay buffer at double the speed of the audio samples (creating...
by drolo
Mon Jul 31, 2017 11:09 am
Forum: Algorithm development
Topic: Change reading speed of sample
Replies: 7
Views: 6538

Thanks for the tip (and sorry for the late reply, for some reason I never get notifications for post replies)

I was thinking about trying something like this but will need to free up some time to work on it and wrap my head around how to make it work :-)

Your pointers are going to help for sure
by drolo
Mon Jul 10, 2017 1:28 pm
Forum: Algorithm development
Topic: Change reading speed of sample
Replies: 7
Views: 6538

Thanks Frank
Though wouldn't adding pitch shift not just shift the pitch of the sample?
the actual sample would not be slowed down or sped up ?
by drolo
Mon Jul 10, 2017 4:59 am
Forum: Algorithm development
Topic: Change reading speed of sample
Replies: 7
Views: 6538

Change reading speed of sample

I thought this would be trivial to achieve but I can't seem to figure out how to go about it... Basically I would like to record a 1s sample and slow it down, or speed it up. Just like a tape recorder, where the pitch also changes. The best I could get until now is using the method as shown here: me...
by drolo
Mon Mar 06, 2017 9:16 am
Forum: FV-1 hardware questions
Topic: Unable to make FV-1 work..
Replies: 24
Views: 33044

knutolai wrote:No problem. You misunderstand me though :)
I mean what size capacitor do you use together with your crystal? The capacitor between X2 and GND.
Ohhh :)
I always use one 22p
by drolo
Wed Feb 22, 2017 7:51 am
Forum: FV-1 hardware questions
Topic: Unable to make FV-1 work..
Replies: 24
Views: 33044

sorry had received no notification for your reply...
I use exactly these:
http://www.taydaelectronics.com/crystal ... -8-mm.html
by drolo
Fri Feb 10, 2017 5:04 am
Forum: FV-1 hardware questions
Topic: Unable to make FV-1 work..
Replies: 24
Views: 33044

I have been using the ones from Tayda and no issues so far (just in case someone shops there)
by drolo
Wed Nov 04, 2015 5:49 am
Forum: Algorithm development
Topic: new tiptop audio zdsp user :)
Replies: 7
Views: 9754

Hi, this is the only one I know of:

http://www.spinsemi.com/forum/viewtopic ... ight=jonny

written by slacker and working very nicely too ;-)
by drolo
Fri Aug 14, 2015 6:53 am
Forum: FV-1 software questions
Topic: Reverse delay?
Replies: 47
Views: 93149

hmm that makes sense, I guess there is no way using that method then ...

I wonder how they did it in the Red Panda Particle. It has a really nice reverse delay, even without clicks ..
by drolo
Thu Aug 06, 2015 2:18 am
Forum: FV-1 software questions
Topic: Reverse delay?
Replies: 47
Views: 93149

Hi, First post for me. I have been using the FV-1 mostly with code generated in SpinCad and I'm just slowly learning the actual assembler. I have been playing with the reverse delay code Frank posted in december 4rth 2007 and was wondering what sets the length of the sample as it is? It seems a lot ...